______to agriculture , the new technology will increase grain production.

试卷相关题目

• 1 ______ year after year , tigers are becoming fewer and fewer .

  A.Having been killed

  B.Killing

  C.Killed

  D.Having killed

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• 2Yao Ming is easily _______ in the crowd because he is very tall.

  A.to pick up

  B.to pick out

  C.picked up

  D.picked out

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• 3It was________ his car after drinking that resulted in the terrible accident doing much damage to his car.

  A.due to his driving

  B.his losing control of

  C.because he drove

  D.to lose his control of

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• 4—I wonder why the thinnest plastics bags, though ________ , are still in use here. —Well, it's no easy job to solve this problem effectively.

  A.banning

  B.banned

  C.to ban

  D.having banned

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• 5He had to have the washing machine _________ last night.

  A.to mend

  B.mending

  C.mended

  D.being mended

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• 6A terrible earthquake and tsunami struck northeastern Japan, _______ almost 28,000 people to be dead or missing.

  A.caused

  B.to cause

  C.causing

  D.having caused

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• 7The headmaster hurried to the concert hall only ______ the speaker ______ .

  A.to find; left

  B.to find; gone

  C.finding; left

  D.finding; gone

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• 8_____ a successful fish scientist, you need to have a curious mind and be able to work on your own.

  A.Become

  B.To become

  C.Becoming

  D.Having become

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• 9_______ and guilty, Maggie put the book on the shelf she had secretly placed in her schoolbag.

  A.Frightened

  B.Frightening

  C.Being frightened

  D.To be frightening

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• 10Laura was happy ____ by so many kind-hearted friends when she had a serious operation in hospital.

  A.to support

  B.to be supported

  C.being supported

  D.supported

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